CVE-2026-70406
Published:October 14, 2026
Updated:October 14, 2026
Gitea's shared comparison helper omits the token repository-access check used when updating pull requests. A public-only token with read:repository scope can route a comparison or pull request creation through a public base repository and retrieve commit history and diffs from a private head repository accessible to the token owner. This bypasses the token's public-only restriction; it does not remove the account's underlying repository permission checks.
Affected Packages
https://github.com/go-gitea/gitea.git (GITHUB):
Affected version(s) >=v1.19.1 <v1.27.3Fix Suggestion:
Update to version v1.27.3gitea.dev (GO):
Affected version(s) >=v1.19.1 <v1.27.3Fix Suggestion:
Update to version v1.27.3code.gitea.io/gitea (GO):
Affected version(s) >=v1.19.0-dev.0.20230119182440-b383652e0229 <v1.27.3Fix Suggestion:
Update to version v1.27.3Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization